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Finding the Third Proportional to 12,165,907 and 18,831,237

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Solution

The third proportional to 12,165,907 and 18,831,237 is: 29,148,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,907 : 18,831,237 = 18,831,237 : x
  2. Step 2: Convert to fraction form
    12,165,907/18,831,237 = 18,831,237/x
  3. Step 3: Cross multiply
    12,165,907x = 18,831,237 × 18,831,237
  4. Step 4: Simplify right side
    12,165,907x = 354,615,486,950,169
  5. Step 5: Solve for x
    x = 354,615,486,950,169/12,165,907
  6. Step 6: Final answer
    x = 29,148,298.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.